ASTM A240 304/SUS304 Hot Rolled Stainless Steel Plate No.1 Finish 1.0mmx1x2m For Vessel Maintenance IMPA 671604
671604 SUS304 hot-rolled stainless steel plate is a 304 austenitic stainless steel plate that meets the ASTM A240 standard, with excellent corrosion resistance, good welding performance, and processing performance. The product adopts No.1 hot-rolled acid washed surface, suitable for fields such as ship maintenance, marine engineering, chemical equipment, pressure vessels, structural manufacturing, and general industrial equipment. As a ship material corresponding to IMPA Code 671604, it can meet the procurement needs of shipyards, ship maintenance companies, and maritime suppliers.
| Item | Specification |
|---|---|
| Product Name | ASTM A240 304/SUS304 Hot Rolled Stainless Steel Plate |
| IMPA Code | 671604 |
| Material Grade | 304 / SUS304 / UNS S30400 / EN 1.4301 |
| Standard | ASTM A240, ASTM A480, JIS G4304, EN 10088 |
| Manufacturing Process | Hot Rolled |
| Surface Finish | No.1 Finish (Pickled & Annealed) |
| Thickness | 1 mm |
| Standard Size | 1000 × 2000 mm |
| Width | 1000 mm |
| Length | 2000 mm |
| Thickness Tolerance | According to ASTM A480 or customer requirements |
| Flatness | ASTM A480 Standard |
| Edge Type | Mill Edge (ME), Slit Edge (SE) |
| Density | 7.93 g/cm³ |
| Heat Treatment | Solution Annealed |
| Processing Services | Cutting, Shearing, Laser Cutting, Plasma Cutting, Water Jet Cutting, CNC Machining |
| Inspection | PMI, UT, Thickness Inspection, Dimension Inspection, Surface Inspection, Third-Party Inspection Available |
| Packaging | Standard Export Seaworthy Wooden Pallet or Wooden Case |
| Application | Vessel Maintenance, Shipbuilding, Offshore Engineering, Chemical Processing, Pressure Vessels, Heat Exchangers, Food Processing Equipment, Architectural Structures |
| Element | Content (%) |
|---|---|
| Carbon (C) | ≤0.08 |
| Silicon (Si) | ≤1.00 |
| Manganese (Mn) | ≤2.00 |
| Phosphorus (P) | ≤0.045 |
| Sulfur (S) | ≤0.030 |
| Chromium (Cr) | 18.00–20.00 |
| Nickel (Ni) | 8.00–10.50 |
| Nitrogen (N) | ≤0.10 |
| Iron (Fe) | Balance |
| Property | Value |
|---|---|
| Density | 7.93 g/cm³ |
| Melting Range | 1400–1450°C |
| Modulus of Elasticity | 193 GPa |
| Thermal Conductivity (100°C) | 16.2 W/m·K |
| Specific Heat Capacity (20°C) | 500 J/kg·K |
| Electrical Resistivity (20°C) | 0.72 μΩ·m |
| Coefficient of Thermal Expansion (20–100°C) | 17.2 × 10⁻⁶/K |
| Magnetic Permeability | Essentially Non-magnetic (Annealed Condition) |
| Property | Value |
|---|---|
| Tensile Strength | ≥515 MPa |
| Yield Strength (0.2% Offset) | ≥205 MPa |
| Elongation (50 mm) | ≥40% |
| Hardness (HB) | ≤201 HB |
| Hardness (HRB) | ≤92 HRB |
| Hardness (HV) | ≤210 HV |
| Reduction of Area | ≥60% |
| Grade | Main Advantages | Limitations | Typical Applications |
|---|---|---|---|
| 304 / SUS304 | Excellent balance of corrosion resistance, strength, weldability, and cost-effectiveness | Not recommended for highly concentrated chloride environments | Vessel maintenance, construction, food processing, pressure vessels |
| 201 Stainless Steel | Lower cost, higher manganese content | Lower corrosion resistance and durability than 304 | Decorative panels, indoor applications, furniture |
| 316 / 316L Stainless Steel | Superior resistance to chlorides and seawater due to molybdenum addition | Higher material cost | Marine engineering, offshore platforms, chemical processing |
| 430 Stainless Steel | Good oxidation resistance and lower price | Ferritic structure with poor weldability and corrosion resistance | Household appliances, interior decoration |
| 321 Stainless Steel | Titanium stabilized for excellent high-temperature performance | More expensive than 304 | Exhaust systems, heat exchangers, aerospace components |
| 310S Stainless Steel | Outstanding heat resistance up to 1100°C | Higher cost and not necessary for general corrosion environments | Furnaces, boilers, heat treatment equipment |
- Excellent resistance to atmospheric corrosion and many industrial chemicals.
- Cost-effective compared with 316/316L while offering excellent overall performance.
- Outstanding weldability and fabrication properties.
- High strength and toughness for structural applications.
- Widely accepted international grade with excellent availability.
- Suitable for marine maintenance, shipbuilding, industrial fabrication, and pressure vessel manufacturing.
The ASTM A240 SUS304 Hot Rolled Stainless Steel Plate is widely used across industries requiring excellent corrosion resistance, mechanical strength, and fabrication performance.
- Vessel maintenance
- Ship repair
- Shipbuilding structures
- Marine equipment
- Deck components
- Cargo handling equipment
- Storage tanks
- Chemical processing equipment
- Pressure vessels
- Heat exchangers
- Pipelines
- Food processing equipment
- Dairy machinery
- Brewing equipment
- Commercial kitchen equipment
- Structural supports
- Stainless steel platforms
- Curtain wall structures
- Industrial flooring
- Architectural fabrication
- Machinery components
- Industrial fabrication
- Conveyor systems
- Metal processing equipment
- Heavy-duty frames
- Power plants
- Water treatment systems
- Renewable energy equipment
- Oil & gas auxiliary facilities
1. What is IMPA Code 671604?
IMPA Code 671604 is an international marine purchasing code used to identify SUS304 hot rolled stainless steel plates supplied for vessel maintenance and ship repair applications.
2. What standard does this stainless steel plate comply with?
The plate is manufactured according to ASTM A240 and can also comply with JIS G4304 and EN 10088 standards upon request.
3. What surface finish does this product have?
This product features a No.1 Finish, which is the standard surface finish for hot rolled stainless steel plates after annealing and pickling.
4. What is the difference between No.1 Finish and 2B Finish?
No.1 Finish is produced by hot rolling, annealing, and pickling, making it suitable for heavy industrial applications. A 2B Finish is produced from cold rolled material and provides a smoother, brighter surface for precision fabrication and decorative uses.
5. Is SUS304 suitable for marine environments?
SUS304 performs well in general marine atmospheres and ship maintenance applications. However, for continuous exposure to seawater or chloride-rich environments, 316 or 316L stainless steel is generally recommended because of its enhanced pitting and crevice corrosion resistance.
6. Can the plate be cut to custom sizes?
Yes. We provide cutting, shearing, laser cutting, plasma cutting, and other processing services according to customer drawings or specifications.
7. What thicknesses are available?
Hot rolled SUS304 stainless steel plates are commonly available from 3 mm to 100 mm, with customized dimensions available depending on project requirements.
8. Do you provide Material Test Certificates?
Yes. EN 10204 3.1 Material Test Certificates (MTC), PMI reports, and third-party inspections from SGS, BV, TUV, or other agencies can be provided upon request.
9. Why choose your company as a supplier?
- Over 15 years of 304 stainless steel plate suppliers and export experience.
- Compliance with ASTM, EN, JIS, and other international standards.
- Large inventory with fast delivery.
- Custom cutting and machining services.
- Strict quality inspection and complete material traceability.
- Global export experience with professional technical support and after-sales service.
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